The greatest common factor of 39 and 156 is 39.
The greatest common factor of 25 , 39 = 1
The greatest common factor is 5 * * * * * Actually, it is 39
The greatest common factor of 3 and 39 is 3.
The greatest common factor of 18 and 39 is 3.
The greatest common factor of 39 and 50 is 1.
The greatest common factor of 22 and 39 is 1
The greatest common factor of 30 and 39 is 3.
The greatest common factor of 37 and 39 is 1.
The greatest common factor of 90 and 39 is 3
The greatest common factor of 39 and 18 is definitely 3.
The greatest common factor is 1.